Removes a specified key from the OpenVMS Registry database. The
    system does not delete a key if the key has subkeys.  Use the
    DELETE TREE command if you wish to delete a key and all of its
    subkeys.
                              CAUTION
       Deleting a key results in symbolic links not being followed.
       This is because the system deletes the key you specify,
       even if it has symbolic links.
                               NOTE
       The OpenVMS Registry database predefined keys are reserved
       keys and cannot be deleted. These keys are HKEY_USER,
       HKEY_LOCAL_MACHINE, and HKEY_CLASSES_ROOT.
    This command requires the SYSPRV privilege or the REG$UPDATE
    rights identifier.
    Format:
      DELETE KEY  key-path key-name
    key-path
    Specifies the key path.
    key-name
    Specifies the name of the key to delete.
Additional Information:
explode
extract